SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
prvni-lekarna.cz
SSL/TLS Certificate
SSL/TLS Certificate for prvni-lekarna.cz
Valid- Issued by (CA)
- Sectigo Limited
- Subject
- www.prvni-lekarna.cz
- Valid from
- Mar 24, 2026
- Valid until
- Oct 8, 2026 (56 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 6DB93B2459AF252BB94C2164F2C619ED
- SHA-256 fingerprint
- FF:1B:87:4A:32:3E:36:C7:21:15:44:FA:07:77:2C:86:67:D3:B8:F2:1C:3D:FF:1D:26:FE:0E:8C:D9:6C:12:84
- Chain
- Sectigo Public Server Authentication CA DV R36 → Sectigo Public Server Authentication Root R46 → USERTrust RSA Certification Authority
Certificate Authority Authorization (CAA)
No CAA policy is published for this domain — any certificate authority may issue for it.
Never get surprised by prvni-lekarna.cz's certificate expiring
This is today's certificate. Turn on monitoring and we'll watch prvni-lekarna.cz continuously, notifying you the moment anything moves across all three signals:
Uptime
We visit the site from multiple regions worldwide and email you within minutes if it goes down, with a per-region breakdown so a real outage stands out from a regional blip.
DNS changes
We watch NS, MX, CAA, DNSSEC, CNAME and A/AAAA records, and identify the host, network, and ASN behind them, so a real migration or hijack stands out from routine noise.
TLS certificate
We warn you 30, 14, 7, and 1 days before it expires, and flag it if the issuing authority changes or the certificate is unexpectedly replaced.
Free for your first domain: uptime, DNS, and certificate together. No credit card.